'I intend to litigate': Brittany Murphy's father Angelo Bertolotti plans to sue Lifetime over their unauthorized biopic of his daughter

Brittany Murphy's father Angelo Bertolotti plans to sue Lifetime over their upcoming biopic of his late daughter Brittany Murphy.

Bertolotti told Radar: 'Lifetime has not been authorized to produce the true story of Brittany Murphy,' adding: 'I intend to litigate Lifetime in a court of law.'

Angelo ordered a new toxicology report on his daughter's death last year, and claimed a new test showed evidence of possible foul play.

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Speaking out: Brittany Murphy's father Angelo Bertolotti will sue Lifetime over their unauthorized biopic of his late daughter

Despite the report proving to be
incorrect, he now claims to Radar that there is still an ongoing
investigation into her cause of death, that he has launched.

A
spokesperson for Brittany's mother Sharon Murphy had already said she
was not consulted for the movie and has not cooperated with the
production in any way.

The biopic
will follow the deceased actress' rise to stardom, her career, and the
circumstances of her untimely death in a two-hour format for Lifetime.

The project is titled The Brittany Murphy Story and will star newcomer Amanda Fuller as the Clueless star.

New biopic: Brittany Murphy's life is being made into a TV movie, pictured in December 2006 in Sydney, Australia

Fuller, 29, is best known for her roles in Last Man Standing and Grey's Anatomy and will star in the biopic alongside television veteran Sherylin Fenn, who will play Brittany's mother Sharon Murphy, according to The Hollywood Reporter.

The Brittany Murphy Story is the first time the actress' life has been adapted for the screen and will air on the Lifetime network on September 6.

THR reports that the made for TV movie will centre on the star's formative years as she worked her way to stardom during the Eighties and Nineties.

Playing Brittany: Amanda Fuller has been cast as the lead, pictured in January in Pasadena, California

It will also focus on her relationship with her mother who pushed her to seek fame and fortune. The TV movie also promises to delve into the speculation surrounding Brittany's death.

In November, Sharon Murphy hit out at claims that the star and her husband Simon Monjack were poisoned to death nearly five years ago.

Sharon broke her silence to insist that claims made by Brittany's estranged father Angelo Bertolotti are 'madness' and 'lies'.

The Brittany Murphy Story: The biopic will follow Brittany's rise to stardom and her relationship with her mother Sharon Murphy

The 61-year-old blonde, who was living with Brittany and Simon in their Hollywood Hills home at the time of their deaths, told The Hollywood Reporter: 'I have chosen to stay out of the limelight since the tragic and sudden death of my wonderful, talented, loving daughter.

'I have no choice now but to come forward in the face of inexcusable efforts to smear my daughter's memory by a man who may be her biological father, but was never a real father to her in her lifetime.'

Brittany was declared to have died from pneumonia and other causes in December 2009. Simon died just five months later of similar causes.

Impressive career: It is unclear if Lifetime will feature one of her scene-stealing roles in the 1996 film Freeway

The role that made her famous: Brittany with Stacey Dash and Alicia Silverstone in Clueless